Front door for locomotive-cabs



W. R. DALTON. FRONT DOOR. FOR LOCOMOTIVE CABS.

APPLICATION FILED NOV- 12. I918.

Patented Feb. 10,1920.

2 SHEETS SHEET 1- um/mica l/Rfia/fon w. R, nmou. Y FRONT DOOR FOR LOCOMOTIVE CABS- APPLICATION FILED IOV l2, 1918.

2 SHEETS-SHEET 2- Patented Feb. 10,1920.

, accompanying drawings.

UNITED sTATEs ATENT OFFICE.

WILLIAM R. DALTON, or INnIANAPoLIs, INDIANA.

FRONT DOOR FOR LOCOMOTIVE-CAZBS.

Specification of Letters Patent.

Patented Feb. 10, 1920.

' Applicationdilel November 12, 1918. Serial No. 262,200.

This invention relates to doors, and particularly to the front doors of locomotive cabs.

In locomotives there is a window or door disposed on each side of the boiler.

The cab doors or windows such as above descrlbed which are now in use, are formedv with wooden frames, with glass at the top and bottom of the frames, and are equipped with a storm window or trap located at the middle of the frame which is hinged so that it may be pushed outward and set at any angle. The object of thus pushing open this storm window isto give the engineer a clear view ahead and at the same time prevent rain or snow from blowing into the cab.

With the Window or door in common use, however, there is no way of raising or lowering this trap or storm window to suit the height of the engineer so that this window may be brought in his line of vision and it requires, therefore, that a carpenter should be called in to reconstruct the window in order to make a change in the positionof the storm window to accommodate the engineer.

The general object of this present inven tion is to do away with this inconvenience by providing a cab door or front window frame provided with upper and lower sashes which when shifted into abutting relation entirely close the. door frame but which may be shifted out of abutting relation and pro Vide in connection therewith a hood, preferably of glass, designed to extend out so as to shelter the opening between the upper and lowersashes, this hood being capable of being'raised or lowered to suit the height of the engineer. i v

A further object of this invention is to connect the hood with the upper sash so that the upper sash will be: lowered as the hood is lowered, the lower sash being independent of the hood and bein capable of adjustment .so as to leave any esired space between the upper ed e of the lower sash and the lower edge of t e upper sash.

Afurther objectis to provide a construction of this character in which the window sashes may-be lowered to an extent as to entirely disclose the window space or wherein they may be shifted into abutting relation and provide means whereby the upper and lower sashes and the hood may be locked in their adjusted ositions.

Other objects wi 1 appear in the course of the following description.

My inventlon is illustrated in the accompanying drawings, wherein Figure 1 is a front elevation of a cab door;

Fig. 2 is a vertical sectional view thereof;

Fig. 3 is a section on the line 33 of Fig. 2;

Fi 4 F ig. 1;

Fig. 5 is a section on the line 55 of is a section on the line 4--4= of 1 and 1 g. 6 is a section on the line 6-6 of Fifi. 1.

eferring to these drawings, it will be seen that this cab window or door, as I shall hereafter call it, consists of two vertically extending, laterally spaced stiles 10. The upper ends of these stiles, as illustrated in section in Fig. 3, are rabbeted on their inside corners as at 11 and the upper ends of the stiles are connected by means of a pair of u per rails 12 which are set within these rab ets 11 and connected thereto, in any suitable manner. At their lower ends the stiles 10 are each formed with a groove 13 and extending across this space is the frame filler 14 which extends into the grooves and disposed against the exterior faces of this frame filler 14 are the lower rails 15. It will thus be seen that a frame is formed composed of the members 10, 12, 1.4; and 15.

Attached to the inner face of the frame thus formed and with its lower edge approximately contiguous to the upper edge of the members 14 and 15 is the inner cover plate 16. This cover plate 16 may be made of any suitable material but is formed with the longitudinally extending slots 17. Disposed upon the exterior of the frame and opposite the cover plate 16 is the exterior cover plate 18. It will be seen that these cover plates 16 and 18 extend upward to about half the height of the frame.

Operating between the stiles 10 of the frame is the lower sash comprising the lower sash frame 19 having therein the glass pane 20. This sash frame 19 has a width about half the width of the stiles 10 and is held in guide strips 21 which are attached to the stiles 10 and extend from the top of the coverplates 16 and 18 to the lower edge of the up- D r rails 12. The sash frame 19 is provided adjacent its lower edge with the outwardly projecting screw-threaded studs 22 adapted to receive the wing nuts 23, these studs passing through the slots 17 in the cover plate 16. It will thus be obvious thatthe lower sash may be raised or lowered within the limits of the slots 17 and looked in its raised or lowered position by the nuts 23. When fully lowered the lower sash will be entirely inclosed between the cover plates 16 and 18 and when raised to its full height the lower sash will extend nearly its full length above the upper edges of the cover plates 16 and 18.

Mounted upon the exterior faces of the stiles 10 toward the upper end of the frame are the vertically disposed rabbeted guides 24 and vertically sliding in these guides are the metallic strips 25. These strips are held in their adjusted positions by bolts or studs 26 carrying wing nuts 27 and extending through slots 28 formed in the stiles 10 of the frame. Attached to these strips 25 and projecting out therefrom are the triangular brackets 29 which support a rectangular frame 30 rabbeted to receive a pane of glass 31 which forms a hood projecting outward and downward in the manner illustrated in Fig. 2. It will be seen that this hood may be raised or lowered by releasing the nut 27, adjusting the slides 25 and then tightening up on the nuts.

Sliding between the upper rails is the upper sash frame 32, whose lower edge is operatively supported from the brackets 29 by means of an upper sash supporting strip 33, which is attached to the frame 30 and which extends upward and rearward and beneath the upper sash frame 32 and thus it will be seen that when the brackets 29 are raised the upper sash will be raised and when the brackets are lowered the upper sash will be lowered and it will also be seen from Fig. 1, that the slots 28 are of such length that the brackets can only be lowered a certain distance and that the upper sash therefore can never be lowered below the upper edges of the upper rails, but that when the brackets are raised to the full height of the slots 28 the upper sash will be shifted to a position almost entirely within the shelter of the upper rails.

The frame formed of the stiles 10, the upper rails 12 and the lower rails 15 and filling piece 14 is designed to be hin ed to the cab in such a manner that it may e swung either outward or inward' as the engineer desires and thus forms a door by which the engineer may pass from the cab onto the running boards of the engine in the usual manner. The construction is such that the opening of the door frame may be entirely closed so as to prevent the entrance of wind, snow or rain, and that, under these circumstances, the hood 31 will prevent the glass of the lower sash for a distance beneath the hood from being covered with rain or snow, or if desired the lower sash may be lowered to any desired extent and that the hood, under these circumstances, will prevent the entrance of rain or snow into the cab. F urthermore, it will be seen that this hood with the upper sash may be shifted downward to a limited distance suflicient so as to adjust the sight opening beneath the hood to the height of the engineer or to the level of his vision. The sliding sashes may be readily adjusted and held in their adjusted positions against the jars and jolts of the engine by means of the bolts and wing nuts provided for that purpose. The door is very simple in construction and obviously convenient.

I claim:

1. A locomotive cab door includin a rectangular frame, upper and lower sas es vertically adjustable in said frame into or out -of abutting relation to each other, a down:

wardly and outwardly extending hood slidingly mounted upon the frame and operatively connected to the upper sash, and means for holding said hood and the upper sash in adjusted positions. x

2. A locomotive cab door comprising a rectangular frame formed of stiles, transversely extending outer and inner rails spaced from each other'and connecting the upper ends of the stiles, a member connecting the lower ends of the stiles, outer and inner plates attached to said stiles in spaced relation to each other and extending upward from the lower ends of thestiles, a lower sash sliding between the stiles and between said outer and inner plates, means for holding said lower sash in its vertically adjusted positions, an upper sash disposed between the stiles and shiftable into position between the upper rails, and a hood slidingly mounted upon the outer face of the frame and having means whereby it may be held in its adjusted positions, the upper sash being operatively-connected to said hood to move therewith.

3. A locomotive cab door comprising a rectangular frame formed of. stiles, transversely extending outer an inner rails spaced from each other and connecting the upper ends of the stiles, a member connecting the lower ends of the stiles, outer and inner plates attached to said stiles in spaced relation to each other and extending upward from the lower ends of the stiles, a lower sash sliding between the stiles and between said outer and inner plates, means for holding said lower sash in its vertically adjusted positions, an upper sash disposed bejustably supported, and means operatively tween the stiles and shiftable into position connecting the hood to the lower edge of between the upper rails, vertically disposed the upper sash whereby the upper sash and members slidingly mounted upon the exhood may be adjusted together.

5 terior faces of the lateral stiles and having In testimony whereof I hereunto afiix my 15 outwardly extending brackets, ahood signature in the presence of two witnesses.

mounted upon said brackets, bolts attached WVILLIAM R. DALTON. to said sliding members and extending Witnesses: through slots in the stiles whereby the slid- PASS COLIN,

10 ing members and the brackets may be ad- J. E. HALLAN. 

